1639201421

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 2241146880

約数和(自身を除く): 601945459

約数列:

[1, 11, 13, 17, 19, 23, 143, 187, 209, 221, 247, 253, 299, 323, 391, 437, 1543, 2431, 2717, 3289, 3553, 4199, 4301, 4807, 5083, 5681, 7429, 16973, 20059, 26231, 29317, 35489, 46189, 55913, 62491, 81719, 96577, 220649, 288541, 322487, 341003, 381121, 390379, 461357, 498389, 603313, 674291, 1062347, 3751033, 4192331, 5074927, 5482279, 6479057, 6636443, 7417201, 7843069, 8765783, 11462947, 71269627, 86273759, 96423613, 126092417, 149018311, 1639201421]

約数ペア:

[(1, 1639201421), (11, 149018311), (13, 126092417), (17, 96423613), (19, 86273759), (23, 71269627), (143, 11462947), (187, 8765783), (209, 7843069), (221, 7417201), (247, 6636443), (253, 6479057), (299, 5482279), (323, 5074927), (391, 4192331), (437, 3751033), (1543, 1062347), (2431, 674291), (2717, 603313), (3289, 498389), (3553, 461357), (4199, 390379), (4301, 381121), (4807, 341003), (5083, 322487), (5681, 288541), (7429, 220649), (16973, 96577), (20059, 81719), (26231, 62491), (29317, 55913), (35489, 46189)]